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The suburban shift toward the Democrats helps explain why they're about to take control of the House. The graphic below shows the shift — and it shows that even the deep-red rural districts elected Republicans with smaller margins than in 2016.

Why it matters: Races tend to be much closer in the suburbs, and that's where Democrats picked up the most seats. With few exceptions, Democrats in conventionally blue districts won by larger margins than Clinton in 2016 and Republicans won by slimmer margins than Trump in 2016.

How to read this chart: A CityLab data project categorized every U.S. House district by the density of its neighborhoods. By comparing the margin victory for Hillary Clinton or Donald Trump in 2016 to the vote margin in the 2018 midterms, we can see which districts shifted to the left or right by comparison.

  • Districts with higher Democratic or lower Republican margins point left; those with smaller Democratic or higher Republican margins point right. The color of each arrow shows who won the district in 2018.
Expand chart
Note: This chart includes only the 393 districts where both a Republican and Democrat ran in 2018. Data: CityLab and Associated Press; Chart: Chris Canipe/Axios

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Rep. Lou Correa tests positive for COVID-19

Lou Correa. Photo: Tom Williams/CQ-Roll Call, Inc via Getty Images

Rep. Lou Correa (D-Calif.) announced on Saturday that he has tested positive for the coronavirus.

Why it matters: Correa is the latest Democratic lawmaker to share his positive test results after last week's deadly Capitol riot. Correa did not shelter in the designated safe zone with his congressional colleagues during the siege, per a spokesperson, instead staying outside to help Capitol Police.

Far-right figure "Baked Alaska" arrested for involvement in Capitol siege

Photo: Shay Horse/NurPhoto via Getty Images

The FBI arrested far-right media figure Tim Gionet, known as "Baked Alaska," on Saturday for his involvement in last week's Capitol riot, according to a statement of facts filed in the U.S. District Court in the District of Columbia.

The state of play: Gionet was arrested in Houston on charges related to disorderly or disruptive conduct on the Capitol grounds or in any of the Capitol buildings with the intent to impede, disrupt, or disturb the orderly conduct of a session, per AP.